Installing a microprocessor kit
Your server comes with one microprocessor installed on the processor board. If
you install an additional microprocessor kit, your server can operate as a symmetric
multiprocessing (SMP) server. With SMP, certain operating systems and
application programs can distribute the processing load between the
microprocessors. This enhances performance for database and point-of-sale
applications, integrated manufacturing solutions, and other applications.
Before you begin:
Read “Electrical safety” on page 42 and “Handling static-sensitive devices”
on page 44.
Thoroughly review the documentation that comes with the microprocessor,
so that you can determine whether you need to update the server basic
input/output system (BIOS). The latest level of BIOS for your server is
available through the World Wide Web. See Chapter 7, “Getting help,
service, and information” on page 161 for the appropriate World Wide Web
addresses.
Obtain an SMP-capable operating system (optional). For a list of supported
operating systems, see http://www.ibm.com/pc/us/compat/ on the World
Wide Web.
Attention: To avoid damage and ensure proper server operation when you install
a new or an additional microprocessor, use microprocessors that have the same
cache size and type, and the same clock speed. Microprocessor internal and
external clock frequencies must be identical.
Notes:
1. The illustrations in this section might differ slightly from your hardware.
2. To order additional microprocessor options, contact your IBM reseller or IBM
marketing representative.
3. The microprocessor that is installed in microprocessor connector U5 is CPU or
processor 1. If a microprocessor is installed in microprocessor connector U6, it
is CPU or processor 2. If the server has only one microprocessor installed, that
microprocessor is installed in microprocessor connector U5 and is the startup
(boot) processor. If more than one microprocessor is installed, the
microprocessor with the lower stepping level is the startup processor, and the
microprocessor with the higher stepping level is the application processor. If
both microprocessors have the same stepping level, the microprocessor
installed in microprocessor connector U6 is the startup processor, and the
microprocessor installed in U5 is the application processor.
Note: You can determine the stepping levels of the installed microprocessors
using the Configuration/Setup. See “System Summary” on page 22.
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IBM xSeries User's Reference
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